package com.lm.activiti.boot.datatype;

import com.google.common.base.Joiner;
import org.junit.Test;

/**
 * @author lm_jcf
 * @date 2019/12/25 11:32
 */
public class StringTest {

    @Test
    public void joiner(){
        System.out.println(Joiner.on(",").skipNulls().join("start ", null, "time"));
    }
}
